故障分析：开机进入工厂模式EWPA和HAMP参数,图像无变化,判定原硬件故障.测枕校管IC302漏极电压,原11V,显示偏低,试换C326/4.7UF故障依旧,查D300,C306都正常,再试换C306故障排除. |
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